131111321001 has 8 divisors (see below), whose sum is σ = 176362131360. Its totient is φ = 86634028992.

The previous prime is 131111320973. The next prime is 131111321039. The reversal of 131111321001 is 100123111131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131111321001 - 2¹⁸ = 131111058857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131111321051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193379191 + ... + 193379868.

It is an arithmetic number, because the mean of its divisors is an integer number (22045266420).

Almost surely, 2^131111321001 is an apocalyptic number.

It is an amenable number.

131111321001 is a deficient number, since it is larger than the sum of its proper divisors (45250810359).

131111321001 is a wasteful number, since it uses less digits than its factorization.

131111321001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386759175.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 131111321001 its reverse (100123111131), we get a palindrome (231234432132).

The spelling of 131111321001 in words is "one hundred thirty-one billion, one hundred eleven million, three hundred twenty-one thousand, one".